Hyundai Tucson: General Information / Troubleshooting

Symptom	Suspect area	Remedy
Engine Does Not Start or Is Hard to Start Starts (Starts Normally)	Ignition Switch	Inspect the ignition switch or replace if necessary.
	Ignition Coil	Inspect the ignition coil or replace if necessary.
	Spark Plugs	Inspect the spark plugs or replace if necessary.
	Ignition wiring is disconnected or damaged.	Repair the wiring or replace if necessary.
Rough Idle or Stalls	Ignition Wiring	Repair the wiring or replace if necessary.
Rough Idle or Stalls	Ignition Coil	Inspect the ignition coil or replace if necessary.
Engine shakes / poor acceleration	Spark plugs and spark plug cables	Inspect spark plugs / cable or replace if necessary
Engine shakes / poor acceleration	Ignition Wiring	Repair the wiring or replace if necessary.
Poor mileage	Spark plugs and spark plug cables	Inspect spark plugs / cable or replace if necessary

Symptom	Suspect area	Remedy
Charge warning indicator does not illuminate with ignition switch "ON" and engine stopped.	Blown fuse	Check fuses
	Bulb burnt out	Replace bulb
	Loose wiring connection	Tighten loose connection
	Electronic voltage regulator	If indicator goes off, replace voltage regulator.
Charge warning indicator does not go off with engine running. (Battery requires frequent recharging)	Drive belt loose or worn	Adjust belt tension or replace belt
	Battery cable loose, corroded or worn	Inspect cable connection, repair or replace cable
	Electronic voltage regulator or alternator	If indicator goes off, replace voltage regulator or alternator.
	Wiring	Repair or replace wiring
Overcharging	Electronic voltage regulator	If indicator goes off, replace voltage regulator.
Overcharging	Voltage sensor wire	Repair or replace wiring
Dismiss	Drive belt loose or worn	Adjust belt tension or replace belt
	Wiring connection loose or short circuit	Check wiring connection, repair or replace wiring
	Electronic voltage regulator or alternator	If indicator goes off, replace voltage regulator or alternator.
	Poor ground	Inspect ground or repair
	Worn battery	Replace battery

Symptom	Suspect area	Remedy
Engine Does Not Crank	Low Battery Charge	Charge or replace battery
	Battery cables loose, corroded or worn	Repair or replace cables
	Transmission range switch (For vehicles with automatic transmission only)	Refer to Group AT - Automatic Transmission.
	Blown fuse	Replace fuse
	Starter malfunction	Replace
	Ignition switch malfunction	Replace
Engine Cranks Slowly	Low Battery Charge	Charge or replace battery
	Battery cables loose, corroded or worn	Repair or replace cables
	Starter malfunction	Replace
Starter keeps running	Starter malfunction	Replace
Starter keeps running	Ignition Lock	Replace
Starter cranks but engine does not start	Short circuit in wiring	Repair or replace wiring
	Broken gear teeth or starter	Replace
	Ring gear teeth broken	Replace flywheel or torque converter

Troubleshooting